Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1TZC callsign genealogy
Currently held by Baur, David H
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KB1TZC's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB1TZC.
- BAUR, DAVID HFLgranted 2010-08-27cancelled 2020-07-07